I think initially I got into PON bravery because I wanted to breed PON, but I suck at making ebs on my SAs so I didn't want to do AD. It's fun though. Infuriating, but fun.
Oh that's awesome Snow! I just got(back) into PON bravery on my side account, and I plan on getting into X bravery here as well, once I have the disposable ebs to just capture a few hundred horses again xD